I have a Toshiba Satellite laptop running XP Home edition. Recently it started some odd behavior: more often than not during bootup, the process stops and a window pops up with an OK button. Text on the title bar and in the window area are undeciferrable characters. Not only that, the characters are different every time. When I select the OK button, it appears to continue to bootup normally but I do not know what the window was for. Almost, but not quite as often, it comes up at shutdown as well. It happens early in the bootup process, before selecting user account to use. At shutdown, its late in the process just before XP closes. Because of the point in the process that the window pops up, I can not do a screen capture, so I took a picture with a camera (picture is attached). I can't notice anything being hurt by it but I do not know what I am OK'ing by hitting the OK button. Also, it started after trying a virus infection clean up (combofix, as directed by a bleepingcomputer moderator). They suggested I try to find an answer in this forum. Anyone seen anything like this or have any ideas what it might be or how to get rid of it? Thanks.